package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.DishFlavor;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.result.PageResult;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;

@Service
@Slf4j
public class DishServiceImpl implements DishService {

    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishFlavorMapper dishFlavorMapper;
    @Autowired
    private DishMapper dishMapper;
    @Override
    @Transactional
    public void savewithFavor(Dish dish) {

        dishMapper.insert(dish);

    }

    @Override
    public PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO) {
        PageHelper.startPage(dishPageQueryDTO.getPage(),dishPageQueryDTO.getPageSize());
        Page<DishVO> page = dishMapper.query(dishPageQueryDTO);
        return new PageResult(page.getTotal(), page.getResult());
    }

    @Transactional
    @Override
    public void batchdelete(List<Long> ids) {
        // 查id的status
        for(long id:ids){
           Dish dish =  dishMapper.querybyid(id);
           if(dish.getStatus()== StatusConstant.ENABLE) {
               throw new DeletionNotAllowedException(MessageConstant.DISH_ON_SALE);
           }
        }

        List<Long> id = setmealDishMapper.getmealdishbyid(ids);
        if(id!=null && id.size()>0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }

        for(Long did:ids){
            dishMapper.deleteid(did);
            dishFlavorMapper.delete( did);
        }

    }

    @Override
    public DishVO getbyidwithflavor(Long id) {
        Dish dish = dishMapper.querybyid(id);

        List<DishFlavor> dishFlavors =  dishFlavorMapper.getflavorbyid(id);
        DishVO dishVO = new DishVO();
        BeanUtils.copyProperties(dish,dishVO);
        dishVO.setFlavors(dishFlavors);
        return dishVO;
    }

    @Override
    public void updatewithflavor(DishDTO dishDTO) {
       Dish dish =  new Dish();
       BeanUtils.copyProperties(dishDTO,dish);
       dishMapper.update(dish);

    }

    @Override
    public void stoporstart(Integer status , Long id) {
        Dish dish = new Dish().builder()
                .status(status)
                .id(id)
                .build();

        dishMapper.update(dish);


    }

    @Override
    public List<Dish> querybycategoryid(Long categoryId) {
       List<Dish> list =  dishMapper.querybycategoryid(categoryId);

        return list;
    }

    /**
     * 条件查询菜品和口味
     * @param dish
     * @return
     */
    public List<DishVO> listWithFlavor(Dish dish) {
        List<Dish> dishList = dishMapper.list(dish);

        List<DishVO> dishVOList = new ArrayList<>();

        for (Dish d : dishList) {
            DishVO dishVO = new DishVO();
            BeanUtils.copyProperties(d,dishVO);

            //根据菜品id查询对应的口味
            List<DishFlavor> flavors = dishFlavorMapper.getflavorbyid(d.getId());

            dishVO.setFlavors(flavors);
            dishVOList.add(dishVO);
        }

        return dishVOList;
    }
}
